Abstract: The application discloses a lighting device with a silent large-volume air duct structure, which comprises an outer shell and an inner shell. The inner shell is embedded and installed on the end face of the outer shell, and a gap between the outer periphery of the inner shell and the inner side of the outer shell forms an air outlet duct. The outer shell or the inner shell is also provided with an air inlet, and an air suction part is arranged corresponding to the air inlet. The cross-sectional shape of the air outlet duct includes an acceleration air duct whose width gradually decreases from inner to outer, and a trumpet-shaped opening connected at the end of the acceleration air duct and connected with the outside, and its technical scheme overcomes the problems in the existing technology that the fan lamp is large in size and generates noise, etc.